Audible alarm for motor-vehicles.



SUMNER. AUDIBLE ALARM FOR MOTOR VEHICLES.

APPLICATION ITILED DEC. 17, 1912.

1,090,801. Patented Mar.17,1914.

.OLUMBIA PLANOGRAY'H COMWASHINDTON n c WILLIAM SUMNER, 0F LIVERPOOL,ENGLAND, ASSIGNOR OF ONE-HALF T0 HERBERT LODGE, OF LIVERPOOL, ENGLAND.

AUDIBLE ALARM FOR MOTOR-VEHICLES.

To all whom it may concern Be it known that I, WILLIAM SUMNER, a subjectof the King of Great Britain, and a resident of Liverpool, England, haveinvented certain new and useful Improvements in Audible Alarms for MotorVehicles, of which the following is a specification.

This invention relates to an improved means for operating an alarm ofthe bell or gong type from a rotary part of the engine of a motor car,preferably the cooling fan of the radiator.

According to this invention a bell, gong, or analogous device is adaptedto be moved into the path of a series of hammers or the like abutmentson the blades of the radiator cooling fan, or other analogous rotary ormoving part of the engine. Means such as a Bowden wire or otherarticulation being provided, connecting the bell or gong to a suitableoperating means on the dash board of the car, whereby the gong may bemoved to a greater or less extent into the path of the hammers, and theintensity of sound emitted by the alarm varied accordingly.

The invention is illustrated in the accompanying drawings, in which,

Figure 1.-is an end view of an alarm mechanism in accordance with thisinvention, Fig. 2. being a side View of Fig. 1., and Fig. 3. a detail insection of the operating mechanism.

In carrying out the invention a series of hammers 1, either springcontrolled or preferably, as shown loosely fitted in angle brack' ets 2,are secured to the blades 3 of the usual cooling fan mounted behind theradiator 4. As the fan is rotated by the belt drive 5, the hammers 1although loosely mounted in the brackets 2 assume, under the centrifugalac tion of the rotating fan, a somewhat rigid outstanding position. Abell, gong, or the like 6, is bolted at 6 to an arm 7 pivoted at 8 to abracket 9 secured to the radiator 4 by bolts 9 or other suitable part ofthe car. To the arm 7 and the bracket 9 is connected a tension spring 10tending to draw the gong 10 into the path of the hammers 1 as the fanrotates. An adjustable stop 11 is provided whereby the inward movementof the bell Specification of Letters Patent.

Application filed December 17, 1912.

Patented Mar. 17, 1914. Serial No. 737,160.

under the action of the spring may be limlted. The gong 6 or the pivotedarm 7 is connected by, say, a Bowden wire 12 or other artlculation to asliding plunger 13, mounted on the dashboard of therar. This plunger 13slldes in a tubular guide 14, and is normally pressed outward in itsguide by a sprlng 15 and the bell 6 consequently held, by the action ofsuch spring tensioning the wire 12, normally clear of the path of therotating hammers 1. By pushing the plunger 13 the spring 14 iscompressed, and the hell 6 permitted to be drawn into the path of thehammers 1 by its own spring control 10. According as the plunger 13 isdepressed to a greater or less extent so will the bell be moved more orless into the path of the hammers, and the intensity of the alarm may bethus graduated. The position of the bracket 9 may be above the gong orbelow it, as indi cated by the dotted lines Fig. 2., and a thick enedpart 16 provided on the rim of the gong at the point which is struck bythe hammers.

I claim 1. In a motor car alarm mechanism, in combination; a fan, aseries of hammers fitted to the blades of the fan, a gong mounted inproximity to the hammers, a spring tending to move the gong into thepath of the hammers, and means controlled by a push or the like forholding the gong out of the hammer path.

2. In a motor car alarm mechanism, in combination, a fan, a series ofhammers fitted to the blades of the fan, a gong carried upon a pivotedsupport in proximity to the hammers, a spring tending to move the gonginto the path of the hammers, a spring holding the gong normally out ofthe path of the hammers, and a push articulated to the pivoted gongsupport.

In testimony whereof I afiix my signature in presence of two witnesses.

WILLIAM SUMNER.

WVitnesses: A. J. DAVIES, I-I. WATSON.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

